Memory corruption via beacon TID mapping parsing
Published Feb 6, 2024 · Updated May 9, 2025
Stack-based buffer overflow in Qualcomm Snapdragon WLAN HOST allows remote attackers to corrupt memory through crafted access-point beacons. The WLAN HOST station parser writes beyond a stack buffer while handling the beacon's TID-to-link mapping information. No authentication or user interaction is required; the published record does not specify whether exploitation causes code execution or a crash.
Summary
What happened
Stack-based buffer overflow in Qualcomm Snapdragon WLAN HOST allows remote attackers to corrupt memory through crafted access-point beacons. The WLAN HOST station parser writes beyond a stack buffer while handling the beacon's TID-to-link mapping information. No authentication or user interaction is required; the published record does not specify whether exploitation causes code execution or a crash.
The record
- CVE
- CVE-2023-43520
- Published
- Feb 6, 2024
- Updated
- May 9, 2025
- Vendor
- Qualcomm
- Product
- Snapdragon
- Classifications
- CWE-121, CWE-787
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 6, 2024CVE publishedPublication date reported by the CVE source.
- May 9, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=AR8035
- Affected versionversion=FastConnect 6900
- Affected versionversion=FastConnect 7800
- Affected versionversion=Flight RB5 5G Platform
- Affected versionversion=QAM8255P
- Affected versionversion=QAM8650P
- Affected versionversion=QAM8775P
- Affected versionversion=QAMSRV1H
- Affected versionversion=QAMSRV1M
- Affected versionversion=QCA6391
- Affected versionversion=QCA6554A
- Affected versionversion=QCA6564AU
- Affected versionversion=QCA6574
- Affected versionversion=QCA6574A
- Affected versionversion=QCA6574AU
- Affected versionversion=QCA6584AU
- Affected versionversion=QCA6595
- Affected versionversion=QCA6595AU
- Affected versionversion=QCA6688AQ
- Affected versionversion=QCA6696
- Affected versionversion=QCA8081
- Affected versionversion=QCA8337
- Affected versionversion=QCC2073
- Affected versionversion=QCC2076
- Affected versionversion=QCC710
- Affected versionversion=QCM8550
- Affected versionversion=QCN6224
- Affected versionversion=QCN6274
- Affected versionversion=QCS7230
- Affected versionversion=QCS8250
- Affected versionversion=QCS8550
- Affected versionversion=QFW7114
- Affected versionversion=QFW7124
- Affected versionversion=QRB5165N
- Affected versionversion=Qualcomm Video Collaboration VC5 Platform
- Affected versionversion=Robotics RB5 Platform
- Affected versionversion=SA6145P
- Affected versionversion=SA6150P
- Affected versionversion=SA6155P
- Affected versionversion=SA8145P
- Affected versionversion=SA8150P
- Affected versionversion=SA8155P
- Affected versionversion=SA8195P
- Affected versionversion=SA8255P
- Affected versionversion=SA8650P
- Affected versionversion=SA8770P
- Affected versionversion=SA8775P
- Affected versionversion=SA9000P
- Affected versionversion=SM8550P
- Affected versionversion=Snapdragon 8 Gen 2 Mobile Platform
- Affected versionversion=Snapdragon 8+ Gen 2 Mobile Platform
- Affected versionversion=Snapdragon AR2 Gen 1 Platform
- Affected versionversion=Snapdragon X75 5G Modem-RF System
- Affected versionversion=SRV1H
- Affected versionversion=SRV1M
- Affected versionversion=SSG2115P
- Affected versionversion=SSG2125P
- Affected versionversion=SXR1230P
- Affected versionversion=SXR2230P
- Affected versionversion=WCD9340
- Affected versionversion=WCD9380
- Affected versionversion=WCD9385
- Affected versionversion=WCD9390
- Affected versionversion=WCD9395
- Affected versionversion=WSA8830
- Affected versionversion=WSA8832
- Affected versionversion=WSA8835
- Affected versionversion=WSA8840
- Affected versionversion=WSA8845
- Affected versionversion=WSA8845H
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Public exploit references
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Technologies
Your stack
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Your stack
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